Big Bang Theory

The Big Bang

• The Big Bang Theory is the most common and accepted theory
• It began as a 'singularity'- (hot, small and dense)
• Then the universe expanded very quickly- thus the name 'the big bang'

Stengths

• Evidence of this theory includes:
• Cosmic microwaves background radiation
• This radiation was hot and strong when the universe was created
• This same radiation is found today as cold and weak but still present

Weaknesses

• The theory doesn't have the answer as to why it happened
• The theory includes assumptions with no concrete evidence

Opportunities

• New matter still being created as the universe is expanding

Threats

• There are other ways of explaining origin
• For Example; 
• The Steady State Theory